1.3 billion for the Marlins? The value of virtually every other team in MLB just went up significantly.
You cannot always do head to head comparisons of sports team values. The business may include other assets. Some teams own thier own stadiums (Patriots and Red Sox) while others suck off the govt teat (Yankees and Giants/Jets).
Without knowing exactly what their buying, you cannot judge if this is a good financial deal. I think the thinking 20 years ago was that Robert Kraft was throwing his money away buying a perinial losing Patriots team. I would say he has done alright on his investment.
Something fishy about this deal.